Multiattack
the body thief may strike twice with its daggers or once with a dagger and once
with a draining touch. Body thieves cannot drain more than one ability using
draining touch per turn (yes turn, not round).

Melee Attack-draining touch +8 attack
(reach 5 ft.; one target): Hit: 1D4+4 damage slashing plus the target must make
a Charisma save (DC 16) or take an additional 4D6 psychic damage and lose one
trait of the body thief’s choice (either a statistic, skill proficiency, class
or racial ability). See the trait description below for how this works.

Languages: common, primordial plus any
languages of the current victim

Senses: Perception +4 (passive 14)

Skills: Stealth +7, Persuasion +8

TRAITS

Shapeshifter-the body thief can mimic
any target it touches as an effect of its draining touch if it so desires. It
may choose to do this as a free action in addition to the attack and ability
theft effect of the draining touch. It can retain this form indefinitely or
until it touches another victim and takes a new form. The body thief can only
mimic creatures of medium size, however, and cannot modify its size like a
doppelganger can.

Ability Theft-The body thief can “steal”
the abilities of its victims, and each time it strikes a target it gains one
ability of choice. The loss is “gained” by the body thief until it steals a new
trait. The victim gains disadvantages on all rolls related to the lost trait or
loses the ability of that trait if it is a class/racial ability. The body thief
can also steal spell abilities this way, See additional info below for how this
attack works. Here is how each ability it can steal works for victim and thief:

Ability trait: The body thief gains the
bonus modifier (if any) of the targeted attribute (i.e. a fighter with 18
strength loses his strength modifier of +4 and the body thief now gains a +4
strength modifier). The new trait does not stack with the body thief’s own
modifier, merely replaces it. The victim suffers disadvantage on the affected
ability until the body thief gives up the stolen ability for another stolen
trait.

Consitution: If the body thief steals constitution,
it immediately gains temporary hit points equal to its total hit dice
multiplied by the CON modifier stolen.

Skill, language or Tool Proficiency: the
body thief gains proficiency of the target’s level or +3 (whichever is better)
in the chosen ability and the target gains disadvantage on the affected
proficiency until the body thief gives up the stolen ability for another stolen
trait.

Resistance or Immunity: the body thief
gains that immunity or resistance and the target loses it until the body thief
steals a new trait.

Class or Race Ability: A single class
ability can be stolen and used by the body thief, such as an extra attack,
spellcasting ability, or any other trait that can benefit the body thief. The
body thief gains the use of the ability at the level of effectiveness of the
victim, and may benefit from it as if he were of the same class and race of the
victim. If a class ability would not for any specific reason benefit the body
thief in any way, then he “steals it” and the victim either gains disadvantage
when using the ability or loses the ability to access that trait, but the body
thief can’t then benefit from the ability.

Stealing Spells and Slots: when the body
thief targets a spell, he steals one spell and one slot of choice to cast the
spell, so long as it is held in memory by the victim. If the spell is “used” by
the body thief before it is replaced then the victim cannot regain the slot or
spell until a long rest. If the body thief replaces the spell with ability before
using it then the spell caster regains the slot and spell immediately.

Recovering stolen abilities: the body
thief relinquishes his stolen trait when he replaces I with another. Advanced
body thieves (see below) can hold two or more traits at once. If a body thief
steals a trait and then holds on to it, he loses it after a full day or a long
rest has passed, and the victim recovers access to the ability after a long
rest.

In the
primordial dawn of the world the quilliotos
arose, formless beings of clay forged by the primordials to serve as the first
men of the world. It is unsure what went wrong after their creation, though the most likely explanation lies in the theory that the ancient qlippothic beings of chaos sabotaged the creation of the quilliotos in spite. As a result, the quilliotos were seen as inherently flawed, lacking souls
and abilities of their own, and so unable to provide the nourishment of worship
that the primordials demanded. They were cast aside and left to rot in the
darkest corners of the earth, as the creator gods went on to forge new races of
beings who could provide the sustenance of souls for the divine.

The quilliotos
earned their title of body thieves when they emerged from their dark prisons in
the earth, and found that they had the ability to steal the abilities of the
new creations of the gods. The body thieves lacked morality and understood only
the ability to take….they could mimic traits of their targets perfectly, but
they lacked the ability to siphon personality…only skills, abilities and
general acumen. In essence they could touch upon every trait of the humans and
demihumans of the world except their souls.

Body thieves
appear as hideous, white and formless humanoid shapes with burning, intense
eyes that are all too “human” in appearance. They nest in dark regions where
they spin cocoons of sticky white silk to form the walls of their breeding
grounds. They can form through a “budding process” once every few centuries,
creating 2D6 copies of themselves which grow to adults in a matter of months,
but can also steal the birthing abilities of a target race when mimicking a
form. The offspring of such a union with another race is usually a deformed and
hideous monster….but once in a while an advanced body thief is formed. Called
quilladeen in the primordial tongue, these are exceptionally rare and evil
beings:

Advanced Body Thief Template (Quilladeen)

Advanced
body thieves are rare offspring born when a body thief takes a disguise and
mates with a human or demihuman. The result is a half-breed of greater than
normal ability. The advanced body thief gains the ability to steal more than
one trait at once: typically 1D3+1 traits at a time. Advanced Body thieves are
CR 5 (1,800 XP) and usually have one “open trait slot” available with the rest
primed from prior stolen abilities. They retain stolen abilities even after a
full day or a long rest, though a victim gets to make a DC 17 charisma save at
the end of each long rest, and if he succeeds he recovers his ability to use
the stolen trait normally….but the advanced body thief does not lose his access
to that trait.

The important thing is that in a million years, when the brain-worms of Arcturus IX have annihilated us throughout the galaxy, there will be no surviving recordings of blogs to be found by the cephalopods that evolve to replace us. In this way will their civilization advance and prosper.